RestartBackoffTimeStrategy (Flink : Runtime 2.0.0 API)

All Known Implementing Classes:

ExponentialDelayRestartBackoffTimeStrategy, FailureRateRestartBackoffTimeStrategy, FixedDelayRestartBackoffTimeStrategy, NoRestartBackoffTimeStrategy
```
public interface RestartBackoffTimeStrategy
```
Strategy to decide whether to restart failed tasks and the delay to do the restarting.

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static interface RestartBackoffTimeStrategy.Factory
The factory to instantiate RestartBackoffTimeStrategy.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`canRestart()`	Returns whether a restart should be conducted.
`long`	`getBackoffTime()`	Returns the delay to do the restarting.
`boolean`	`notifyFailure(Throwable cause)`	Notify the strategy about the task failure cause.

- Method Detail
  - canRestart
```
boolean canRestart()
```
    Returns whether a restart should be conducted.
    
    Returns:
    
    whether a restart should be conducted
  - getBackoffTime
```
long getBackoffTime()
```
    Returns the delay to do the restarting.
    
    Returns:
    
    the delay to do the restarting
  - notifyFailure
```
boolean notifyFailure(Throwable cause)
```
    Notify the strategy about the task failure cause.
    
    Parameters:
    
    cause - of the task failure
    
    Returns:
    
    True means that the current failure is the first one after the most-recent failure handling happened, false means that there has been a failure before that was not handled, yet, and the current failure will be considered in a combined failure handling effort.